Sanitary Landfill - Leachate and Gas Management

Webinaire / les 24 et 25 novembre 2022 /
Code : 13-1108-ONL22

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Veuillez noter :
This course is held online over 2 days on the following schedule (All times in Eastern Time Zone):

9:30 am to 5:30 pm Eastern (Will include the usual breaks)

After participating in this course, you will be able to:

  • Identify factors that impact landfill site selection, design, operation and management
  • Learn the criteria used in the design, implementation and management of landfills
  • Review the design implementation process for landfills
  • Develop an understanding of the functions of cover and liner systems
  • Reduce risk of contaminant release

The management of landfill sites is becoming an ever challenging task. Impact of leachate from landfills on groundwater quality is a major concern from public health, environmental and regulatory perspectives. Additional concerns arise due to gas migration which can result in odours, the escape of combustible gases, and landfill stability and settlement issues. To avoid such issues, the designer and landfill manager must thoroughly understand the mechanisms of protection, movement, monitoring and control of leachate and gas.

This course focuses on optimizing the performance of landfills from design to post-closure phases, and deals comprehensively with the topics of great concern to landfill designers and managers.

Course Outline:

  • Basic concepts of solid waste management
  • Regulatory framework for landfill design
  • Leachate management & disposal
  • Design of liner & cover systems
  • Contaminant transport modelling
  • Leachate & gas collection systems
  • Operation, monitoring & management

Who Should Attend:
This course would be beneficial to those who are involved in the design, operation and management of sanitary landfills, including:
Solid Waste Managers • Environmental & Municipal Engineers • Landfill Managers • Consultants • Regulatory personnel • Technicians

Veuillez noter :
This course is held online over 2 days on the following schedule (All times in Eastern Time Zone):

9:30 am to 5:30 pm Eastern (Will include the usual breaks)

Horaire : 9:30 AM - 5:30 PM EDT

Exigences techniques

Pour les utilisateurs de PC
OS: Windows 7, 8, 10 ou plus récent

Navigateur :
IE 11 ou plus récent, Edge 12 ou plus récent, Firefox 27 ou plus récent, Chrome 30 ou plus récent

Pour les utilisateurs de Macintosh
OS: MacOS 10.7 ou plus récent

Navigateur :
Safari 7+, Firefox 27+, Chrome 30+

OS: iOS 8 ou plus récent

OS: Android 4.0 ou supérieur

voir le programme complet


Veuillez noter :
This course is held online over 2 days on the following schedule (All times in Eastern Time Zone):

9:30 am to 5:30 pm Eastern (Will include the usual breaks)

Day I

Waste Management and Sanitary Landfills

  • Waste management, concept of a landfill design, estimation of landfill volume
  • Flow fundamentals, flow of leachate from landfill
  • Regulatory frameworks, landfill standards and guidelines, reasonable use criteria

Hydrology and Hydrogeology of Landfill Sites

  • Site characterization and selection
  • Principles of situating the landfill
  • Blowout and excavation

Leachate Management and Disposal

  • Volume of leachate in a landfill
  • Water balance analysis (HELP Model)
  • Leachate management
  • Landfill cover design
  • Design of leachate collection system (LCS)
  • How to minimize clogging in a LCS
  • Leachate treatment
  • Liner design (Geomembrane, GCLs, CCLs)

Day II

Site Assessment and Computer Modelling of Leachate Transport

  • Contaminant transport modelling
  • Computer simulation of groundwater environment (POLLUTE Program)
  • Contaminating life span of the site
  • Assessment of long-term performance
  • Landfill settlement and stability

Landfill Gas Management

  • Gas collection systems
  • Monitoring gas movement
  • Flares and treatment options

Landfill Operation

  • Waste segregation
  • Waste densities and compaction
  • Intermediate and final landfill cover
  • Nuisance, odour, litter and galls
  • Average cost for landfill approval, construction and operation
  • Surface water management: rainfall, run-off, erosion control

Environmental Compliance

  • Groundwater and surface water monitoring
  • Gas monitoring
  • Contingency measures

Landfill Mining

  • Why, where and when to consider landfill mining
  • Issues of landfill reclamations

Questions and Answers and Feedback to Participants on Achievement of Learning Outcomes

Concluding Remarks and Final Adjournment


Mohammad Rayhani, Ph.D., P.Eng.

Mohammad T. Rayhani, PhD., P. Eng., is an associate Professor of Geotechnical Engineering and Director of Geoengineering Research Group at Carleton University. He has over 20 years of industrial and research experience in the field of geotechnical and geo-environmental engineering, and has been involved in many engineering projects around the world in foundation design, landfill barrier systems, retaining walls, embankment dams and slope stability. His research mainly focuses on advanced foundation systems, soil and foundation improvement solutions for seismic resistant design, foundation design in permafrost, and geotechnical aspects of landfill design. He holds a Ph.D. degree in Geotechnical Engineering from the University of Western Ontario and he is the author of over 50 publications in different areas of geo-engineering. Dr. Rayhani is a member of CGS, OGG, ASCE, ISMFE, and a Registered Professional Engineer in the Province of Ontario.


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